The following article provides further background and mentions this message can be ignored:https://gtacknowledge.extremenetworks.com/articles/Q_A/What-does-this-error-Unsupported-platform-to-run-DHCP-server-mean
When the console was working, did you happen to save those logs? Those logs may help determine the reason for the booting issues. Please open a support case with Extreme to further review this console logs and/or determine any further recovery option...
The SLX9030 does support OSPF over MCT. I assume the vrf is being specified when issuing the ping (Ex. SLX# ping 10.253.18.49 vrf management-vrf)? If possible, please open a support case to investigate the cause of the connectivity issues as needed.
A normal ping (ex. VDX# ping X.X.X.X) will use the default-vrf by default. The "show vrf" command will show all the vrfs:
VDX# show vrf
Total number of VRFs configured: 2
VrfName VrfId V4-Ucast V6-Ucast
default-vrf 1 Enab...